TidyVoice2026 Baseline: SimAM-ResNet34 Speaker Verification Model

Model Description

This is the baseline model for the TidyVoice Challenge: Cross-Lingual Speaker Verification at Interspeech 2026. The model addresses the critical problem of speaker verification under language mismatch, where system performance degrades significantly when speakers use different languages.

Architecture

• Model: SimAM-ResNet34 with Attentive Statistical Pooling (ASP)
• Embedding Dimension: 256
• Input: 80-dimensional log Mel-filterbank features
• Sample Rate: 16 kHz

Training

The model is:

1. Pretrained on VoxBlink2 and VoxCeleb2 datasets
2. Fine-tuned on the TidyVoiceX training set using large-margin training

Performance

The baseline achieves the following performance on the TidyVoice development set:

Usage

For TidyVoice2026 Challenge: If you are using this model for the TidyVoice2026 Challenge, please follow the detailed instructions in the GitHub repository README for complete setup, data preparation, training, and evaluation procedures.

Additional Resources

• TidyVoice2026 Challenge README: Complete setup and usage guide - Follow this for detailed instructions on using this model for the TidyVoice2026 Challenge
• GitHub Repository: WeSpeaker TidyVoice Baseline
• Challenge Website: https://tidyvoice2026.github.io

Installation

First, install WeSpeaker:

pip install git+https://github.com/wenet-e2e/wespeaker.git

Or clone the repository:

git clone https://github.com/wenet-e2e/wespeaker.git
cd wespeaker
pip install -e .

Quick Start

Using WeSpeaker Python API

import wespeaker
import torch

# Load the model from Hugging Face
# Download the model files (avg_model.pt and config.yaml) to a directory
model_dir = "path/to/downloaded/model"

# Initialize the model
model = wespeaker.load_model(model_dir)
model.set_device('cuda:0')  # or 'cpu'

# Extract speaker embedding from a single audio file
embedding = model.extract_embedding('audio.wav')
print(f"Embedding shape: {embedding.shape}")

# Compute similarity between two audio files
similarity = model.compute_similarity('audio1.wav', 'audio2.wav')
print(f"Similarity score: {similarity}")

# Extract embeddings from multiple files (Kaldi format)
utt_names, embeddings = model.extract_embedding_list('wav.scp')

Using Command Line

# Extract embedding from a single audio file
wespeaker --task embedding \
    --audio_file audio.wav \
    --output_file embedding.txt \
    --pretrain path/to/model/directory

# Extract embeddings from wav.scp (Kaldi format)
wespeaker --task embedding_kaldi \
    --wav_scp wav.scp \
    --output_file embeddings.ark \
    --pretrain path/to/model/directory

# Compute similarity between two audio files
wespeaker --task similarity \
    --audio_file audio1.wav \
    --audio_file2 audio2.wav \
    --pretrain path/to/model/directory

Using WeSpeaker Training Scripts

If you're using the WeSpeaker training framework, you can load the model checkpoint directly:

from wespeaker.utils.checkpoint import load_checkpoint
from wespeaker.models.speaker_model import get_speaker_model
import yaml

# Load config
with open('config.yaml', 'r') as f:
    configs = yaml.safe_load(f)

# Initialize model
model = get_speaker_model(configs['model'])(**configs['model_args'])

# Load checkpoint
load_checkpoint(model, 'avg_model.pt')

# Set to evaluation mode
model.eval()
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
model.to(device)

# Extract embeddings (see examples/tidyvocie/README.md for full pipeline)

Model Files

The model repository should contain:

• avg_model.pt: The averaged model checkpoint (PyTorch format)
• config.yaml: Model configuration file

Note: When using WeSpeaker's load_model() function, ensure the model directory contains both avg_model.pt and config.yaml files.

Dataset

This model is trained and evaluated on:

• TidyVoiceX: A large-scale, multilingual corpus derived from Mozilla Common Voice
  • Over 4,474 speakers across 40 languages
  • Approximately 321,711 utterances totaling 457 hours
  • Designed to isolate the effect of language switching

For more information about the dataset and challenge, visit: https://tidyvoice2026.github.io

Citation